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| Presentation | 2012-03-07 09:00 Application of 2-step QRM-MLD for MIMO-OFDM Katsuhiro Temma, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.)  RCS2011-316 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Maximum likelihood detection employing QR decomposition and M-algorithm (QRM-MLD) can achieve almost the same transmission performance as MLD in multiple-input multiple-output (MIMO) - orthogonal frequency division multiplexing (OFDM) systems. Recently, we proposed the reduced complexity 2-step QRM-ML block signal detection (QRM-MLBD) which discards the unreliable symbol candidates by computing the a posteriori probability from the output of minimum mean square error based frequency-domain equalization (MMSE-FDE) for single-carrier (SC) transmission. This scheme can be applied to MIMO-OFDM system. In this paper, we apply the 2-step QRM-MLD which uses the MMSE detection (MMSED) as the tentative decision to MIMO-OFDM transmission. It is shown that detection order affects the achievable performance of QRM-MLD. We consider two ordering schemes: the ordering based on the number of symbol candidates and the sorted QR decomposition (SQRD). We evaluate, by computer simulation, the average packet error rate (PER) performance and complexity of MIMO-OFDM transmission using 2-step QRM-MLD. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | OFDM / MIMO / MLD / MMSED / QR decomposition / M-algorithm / ordering / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 451, RCS2011-316, pp. 1-6, March 2012. | |
| Paper # | RCS2011-316 | |
| Date of Issue | 2012-02-29 (RCS) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | RCS2011-316 |
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| Conference Information | |
| Committee | SR RCS SRW |
| Conference Date | 2012-03-07 - 2012-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2012-03-SR-RCS-SRW |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Application of 2-step QRM-MLD for MIMO-OFDM |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | MIMO |
| Keyword(3) | MLD |
| Keyword(4) | MMSED |
| Keyword(5) | QR decomposition |
| Keyword(6) | M-algorithm |
| Keyword(7) | ordering |
| Keyword(8) | |
| 1st Author's Name | Katsuhiro Temma |
| 1st Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 2nd Author's Name | Tetsuya Yamamoto |
| 2nd Author's Affiliation | Tohoku University (Tohoku Univ.) |
| 3rd Author's Name | Fumiyuki Adachi |
| 3rd Author's Affiliation | Tohoku University (Tohoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-03-07 09:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2011-316 |
| Volume (vol) | vol.111 |
| Number (no) | no.451 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2012-02-29 (RCS) |
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